Nakano Note (Nakano wa Kangaeru noda) NK 5279 P/Lemmon (2023 JN16)
The following improved orbital elements, by S. Nakano, are from 74 observations 2018 to 2024. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. See an orbit in CBET 5430 (same orbit). Epoch = 2025 Jan. 5.0 TT T = 2024 Dec. 30.61037 +/- 0.00105 (m.e.) TT Peri. = 353.15579 +/- 0.00057 Node = 11.87587 +/- 0.00050 (2000.0) Inc. = 3.70261 +/- 0.00005 q = 2.2996906 +/- 0.0000082 AU e = 0.1468015 +/- 0.0000026 a = 2.6953758 +/- 0.0000127 AU n' = 0.22272813 +/- 0.00000157 P = 4.425 +/- 0.0000312 years T = 2020 July 25.06877 TT Epoch = 2020 July 10.0 TT Peri. = 352.62469 e = 0.1467868 Node = 11.89853 (2000.0) a = 2.6954354 AU Inc. = 3.70315 n'= 0.22272075 q = 2.2997809 AU P = 4.425 years The predicted orbit for the 2029 return is as follows: T = 2029 June 4.88444 TT Epoch = 2029 May 24.0 TT Peri. = 353.37274 e = 0.1497106 Node = 11.72816 (2000.0) a = 2.6950515 AU Inc. = 3.70576 n'= 0.22276835 q = 2.2915737 AU P = 4.424 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2018/ 230603 247 0.1- 0.3+ 230618 Q62 0.6+ 0.4- 180318 T09 0.0 0.1- 230604 247 0.3- 0.0 230618 L81 0.0 0.2- 180318 T09 0.2+ 0.0 230605 247 0.9+ 0.5+ 230618 L81 0.2+ 0.1- 180318 T09 0.1- 0.3+ 230605 247 0.1+ 0.9+ 230622 M21 0.2- 0.5- 2023/ 230608 X02 0.1- 0.2- 230623 M21 0.2- 0.2- 230429 I41 0.6+ 0.3- 230608 X02 0.1- 0.1+ 230623 M21 0.0 0.0 230429 I41 0.4+ 0.1- 230608 X02 0.1- 0.2+ 230706 M21 0.2- 0.1- 230429 I41 0.2+ 0.7- 230608 F52 0.1- 0.1+ 230706 M21 0.1+ 0.1+ 230429 I41 0.5+ 0.0 230608 F52 0.0 0.2+ 230714 247 0.6+ 0.4+ 230510 G96 0.1- 0.0 230608 F52 0.0 0.1+ 230714 247 0.1+ 0.2- 230510 G96 0.2- 0.3+ 230608 F52 0.0 0.0 230714 247 0.8+ 0.2+ 230510 G96 0.5- 0.5+ 230615 247 0.1- 0.0 230715 247 0.2+ 0.1- 230510 G96 0.4- 0.1+ 230615 247 0.4- 0.1- 230715 247 0.8+ 0.0 230512 F51 0.1- 0.0 230615 247 0.0 0.2- 230715 247 0.4+ 0.1+ 230512 F51 0.1- 0.0 230615 247 0.6+ 0.2- 230716 X02 0.5- 0.3+ 230512 F51 0.1- 0.0 230615 247 0.0 0.4- 230716 X02 0.3- 0.1- 230512 F51 0.0 0.0 230615 247 0.7+ 0.2+ 230716 X02 0.2- 0.2+ 230513 D29 0.7- 0.1+ 230615 247 0.2+ 0.1+ 230803 X09 0.7+ 0.3- 230513 D29 0.6- 0.1+ 230616 247 0.2+ 0.3+ 230804 X09 0.1+ 0.6- 230513 D29 0.3- 0.2+ 230616 247 0.3+ 0.1- 230812 X02 0.3+ 0.2- 230525 G96 0.0 0.0 230617 247 0.0 0.3+ 2024/ 230525 G96 0.1- 0.0 230617 247 0.4+ 0.1- 240312 X09 0.1+ 0.4+ 230525 G96 0.1- 0.0 230617 247 0.2+ 0.2+ 240312 X09 0.7- 0.2+ 230525 G96 0.1- 0.1+ 230617 247 0.0 0.1+ 240629 X09 0.1- 0.7+ 230603 247 0.1- 0.9+ 230618 247 0.3+ 0.1+ 240629 X09 0.3+ 0.9- 230603 247 0.0 1.2+ 230618 247 0.3+ 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Aug. 17